結果

問題 No.2375 watasou and hibit's baseball
ユーザー haihamabossuhaihamabossu
提出日時 2023-07-07 23:22:07
言語 Rust
(1.77.0 + proconio)
結果
WA  
実行時間 -
コード長 3,315 bytes
コンパイル時間 13,074 ms
コンパイル使用メモリ 401,392 KB
実行使用メモリ 15,232 KB
最終ジャッジ日時 2024-07-21 19:46:47
合計ジャッジ時間 16,098 ms
ジャッジサーバーID
(参考情報)
judge4 / judge3
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 1 ms
6,816 KB
testcase_01 AC 1 ms
6,812 KB
testcase_02 AC 1 ms
6,940 KB
testcase_03 AC 39 ms
7,936 KB
testcase_04 WA -
testcase_05 AC 1 ms
6,940 KB
testcase_06 AC 86 ms
15,232 KB
testcase_07 AC 1 ms
6,944 KB
testcase_08 WA -
testcase_09 AC 1 ms
6,940 KB
testcase_10 WA -
testcase_11 WA -
testcase_12 AC 103 ms
15,104 KB
testcase_13 WA -
testcase_14 AC 1 ms
6,940 KB
testcase_15 AC 9 ms
6,940 KB
testcase_16 AC 4 ms
6,940 KB
testcase_17 WA -
testcase_18 WA -
testcase_19 AC 1 ms
6,940 KB
testcase_20 WA -
testcase_21 WA -
testcase_22 AC 1 ms
6,940 KB
testcase_23 WA -
testcase_24 WA -
testcase_25 WA -
testcase_26 WA -
testcase_27 WA -
testcase_28 AC 77 ms
15,104 KB
testcase_29 WA -
testcase_30 WA -
testcase_31 WA -
testcase_32 WA -
testcase_33 AC 93 ms
15,104 KB
testcase_34 WA -
testcase_35 AC 75 ms
15,104 KB
testcase_36 AC 75 ms
15,104 KB
testcase_37 WA -
testcase_38 WA -
権限があれば一括ダウンロードができます

ソースコード

diff #

pub mod scanner {

    pub struct Scanner {
        buf: Vec<String>,
    }

    impl Scanner {
        pub fn new() -> Self {
            Self { buf: vec![] }
        }

        pub fn new_from(source: &str) -> Self {
            let source = String::from(source);
            let buf = Self::split(source);
            Self { buf }
        }

        pub fn next<T: std::str::FromStr>(&mut self) -> T {
            loop {
                if let Some(x) = self.buf.pop() {
                    return x.parse().ok().expect("");
                }
                let mut source = String::new();
                std::io::stdin().read_line(&mut source).expect("");
                self.buf = Self::split(source);
            }
        }

        fn split(source: String) -> Vec<String> {
            source
                .split_whitespace()
                .rev()
                .map(String::from)
                .collect::<Vec<_>>()
        }
    }
}

use crate::scanner::Scanner;
use std::io::Write;

macro_rules! mdvec {
    ($elem:expr; $n:expr) => (
        vec![$elem; $n]
    );
    ($elem:expr; $n:expr $(; $ns:expr)+) => (
        vec![mdvec![$elem $(; $ns)*]; $n]
    );
}

fn main() {
    let mut scanner = Scanner::new();
    let out = std::io::stdout();
    let mut out = std::io::BufWriter::new(out.lock());
    let t: usize = 1;
    for _ in 0..t {
        solve(&mut scanner, &mut out);
    }
}
fn solve(scanner: &mut Scanner, out: &mut std::io::BufWriter<std::io::StdoutLock>) {
    let n: usize = scanner.next();
    let a: isize = scanner.next();
    let b: isize = scanner.next();
    let xyk = (0..n)
        .map(|_| {
            (
                scanner.next::<isize>(),
                scanner.next::<isize>(),
                scanner.next::<isize>(),
            )
        })
        .collect::<Vec<_>>();
    let dist = |i: usize, j: usize| -> isize {
        let (xi, yi, _) = xyk[i];
        let (xj, yj, _) = xyk[j];
        (xi - xj).abs() + (yi - yj).abs()
    };
    let ok = |i1: usize, i2: usize, i3: usize| -> bool {
        let (_, _, k2) = xyk[i2];
        let (_, _, k3) = xyk[i3];
        let mut res = false;
        res |= b <= (k2 - k3).abs();
        res |= a <= dist(i3, i2) + dist(i3, i1);
        res
    };
    let mut dp = mdvec!(false; 1 << n; n; n);
    let mut ans = 1;
    for i in 0..n {
        for j in 0..n {
            if i == j {
                continue;
            }
            if a <= dist(i, j) || b <= (xyk[i].2 - xyk[j].2).abs() {
                dp[(1 << i) | (1 << j)][i][j] = true;
                ans = 2;
            }
        }
    }
    for bits in 0..(1 << n) {
        for i in 0..n {
            if ((bits >> i) & 1) == 0 {
                continue;
            }
            for j in 0..n {
                if i == j || ((bits >> j) & 1) == 0 {
                    continue;
                }
                for k in 0..n {
                    if ((bits >> k) & 1) == 1 {
                        continue;
                    }
                    if ok(i, j, k) {
                        let next = bits | (1 << k);
                        dp[next][j][k] = true;
                        ans = ans.max(next.count_ones());
                    }
                }
            }
        }
    }
    writeln!(out, "{}", ans).unwrap();
}
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